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% Copyright (c) 2014, Ross Adelman, Nail A. Gumerov, and Ramani Duraiswami
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% 1. Redistributions of source code must retain the above copyright notice,
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function cart = obl_to_cart(a, obl)
	eta = obl(1, :);
	xi = obl(2, :);
	phi = obl(3, :);
	x = a * sqrt(1.0 - (eta .^ 2)) .* sqrt((xi .^ 2) + 1.0) .* cos(phi);
	y = a * sqrt(1.0 - (eta .^ 2)) .* sqrt((xi .^ 2) + 1.0) .* sin(phi);
	z = a * eta .* xi;
	cart = [x; y; z];
end
